﻿<?xml version="1.0" encoding="utf-8"?><Type Name="IDesignerDataSchema" FullName="System.ComponentModel.Design.Data.IDesignerDataSchema"><TypeSignature Language="C#" Value="public interface IDesignerDataSchema" /><AssemblyInfo><AssemblyName>System.Design</AssemblyName><AssemblyVersion>2.0.0.0</AssemblyVersion></AssemblyInfo><Interfaces /><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>Classes that implement the <see cref="T:System.ComponentModel.Design.Data.IDesignerDataSchema" /> interface retrieve schema information from a data store and return it to the user interface, typically to populate UI elements that enable the user to specify the data-store object that they  want to work with.</para><para>The <see cref="T:System.ComponentModel.Design.Data.IDesignerDataSchema" /> interface provides two methods: the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.GetSchemaItems(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method, which returns the requested schema objects, and the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.SupportsSchemaClass(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method, which indicates whether a specified data-schema object is supported by the data store. </para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Defines methods for retrieving data-store schema information.</para></summary></Docs><Members><Member MemberName="GetSchemaItems"><MemberSignature Language="C#" Value="public System.Collections.ICollection GetSchemaItems (System.ComponentModel.Design.Data.DesignerDataSchemaClass schemaClass);" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>2.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.Collections.ICollection</ReturnType></ReturnValue><Parameters><Parameter Name="schemaClass" Type="System.ComponentModel.Design.Data.DesignerDataSchemaClass" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>The <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.GetSchemaItems(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method returns a collection of all the specified schema objects in the data store. </para><para>See the <see cref="T:System.ComponentModel.Design.Data.DesignerDataSchemaClass" /> class for the list of schema objects supported by the .NET Framework. Additional schema objects can be added to the <see cref="T:System.ComponentModel.Design.Data.DesignerDataSchemaClass" /> class by creating a derived type.</para><para>If the data store does not support the requested schema object, the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.GetSchemaItems(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method should return null. You can use the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.SupportsSchemaClass(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method to determine whether a data store supports the requested schema object before calling the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.GetSchemaItems(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method, to avoid returning null to your application.</para><para>If the data store supports the requested object, but does not contain any instances, the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.GetSchemaItems(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method should return an empty collection.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Gets a collection of specified schema items.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>A collection of schema objects of the specified type.</para></returns><param name="schemaClass"><attribution license="cc4" from="Microsoft" modified="false" />The schema objects to return.</param></Docs></Member><Member MemberName="SupportsSchemaClass"><MemberSignature Language="C#" Value="public bool SupportsSchemaClass (System.ComponentModel.Design.Data.DesignerDataSchemaClass schemaClass);" /><MemberType>Method</MemberType><AssemblyInfo><AssemblyVersion>2.0.0.0</AssemblyVersion></AssemblyInfo><ReturnValue><ReturnType>System.Boolean</ReturnType></ReturnValue><Parameters><Parameter Name="schemaClass" Type="System.ComponentModel.Design.Data.DesignerDataSchemaClass" /></Parameters><Docs><remarks><attribution license="cc4" from="Microsoft" modified="false" /><para>The <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.SupportsSchemaClass(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method indicates whether the data store supports a specified data-schema object. If the data store does not support the specified object, the <see cref="M:System.ComponentModel.Design.Data.IDesignerDataSchema.SupportsSchemaClass(System.ComponentModel.Design.Data.DesignerDataSchemaClass)" /> method should return false.</para><para>You can add tests for additional data-schema objects by deriving from the <see cref="T:System.ComponentModel.Design.Data.DesignerDataSchemaClass" /> class.</para></remarks><summary><attribution license="cc4" from="Microsoft" modified="false" /><para>Returns a value indicating whether the data store contains the specified data-schema object.</para></summary><returns><attribution license="cc4" from="Microsoft" modified="false" /><para>true if the data store supports the specified data-schema object; otherwise, false.</para></returns><param name="schemaClass"><attribution license="cc4" from="Microsoft" modified="false" />The schema objects to return.</param></Docs></Member></Members></Type>